Around 6:00pm Tuesday evening crews were called to 390 Chestnut Street, which is near the intersection with Liberty Street.
There was heavy smoke and fire coming from the structure.
All the residents were able to get out successfully.
The cause is unknown and crews remained on the scene for several hours.
Copyright 2015 Nexstar Broadcasting, Inc. All rights reserved. This material may not be published, broadcast, rewritten, or redistributed.